Internal-combustion engines – Two-cycle – Rear compression
Patent
1994-02-22
1998-10-20
Kamen, Noah P.
Internal-combustion engines
Two-cycle
Rear compression
123578, 123584, 123 73A, F02B 3304
Patent
active
058231501
ABSTRACT:
A number of embodiments of induction system arrangements for a two cycle crankcase compression internal combustion engine having reed valve assemblies comprised of a mounting portion that defines a flow passage and a first caging member that divides the flow passage into first and second sections. A second caging member is affixed to the first caging member and the means which affixes it also affix a first reed valve for valving a valved opening in the first caging member. The valved openings in the caging members are generally rectangular in configuration and have a cross-sectional flow area approximately equal to the cross-sectional flow area of the intake passage in which the reed valve assembly is positioned. At least a pair of generally circular induction passages serve each reed valve member and a variety of different types of throttle valve arrangements and injection patterns are disclosed.
REFERENCES:
patent: 3008459 (1961-11-01), Kaufman
patent: 4395978 (1983-08-01), Boyesen
patent: 4905638 (1990-03-01), Curtis et al.
patent: 4928636 (1990-05-01), Weed
patent: 5140964 (1992-08-01), Torigai
Patent abstracts of Japan vol. 16, No. 119 (M-1225) 25 Mar. 1992 & JP-A-32 86 139 (Suzuki) 17 Dec. 1991.
European Searh Report--EP 92 12 2063 dated Mar. 25, 1993.
Kamen Noah P.
Yamaha Hatsudoki Kabushiki Kaisha
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